Can't remember if I've answered this.Actually, John Wesley, if the biographers are correct, never taught that sinless perfectibility was possible in this life. It was his followers who came up with that. I was raised in the Methodist Church--very liberal, except for some of the older ones who still believed biblical doctrine. It was very social gospel as well--that one went to heaven based on being pretty good and doing good works (which is why that makes my blood boil when I come across it). I never heard the true gospel in my church growing up. Had I done so, it would have probably saved me heartache.
Satan was working even then to pervert the gospel. Christianity has always been a "boiling pot" which I suspect God permits for a purpose. That is why I love His word because: 2 Timothy 3:16
A bit mechanistic for my tastes but, I suppose that it helped put the "fear of God" into some (either that or the fear of Father McMonagle--as my husband, a former RC--has said--LOL).
Yes. ONLY HE has ever achieved sinless perfection here on earth. It is to destroy a central doctrine in Christianity to insist that sinless perfection is possible for mere mortals like us--and it is prideful (guess who would like us to believe that we can "become like God"). Sin goes with the territory of mortality. When we become immortal, then we will become like Him and be safely beyond the grip of the evil one.
Yes. In an odd sort of way, teaching sinless perfection invites the evil one into one's life. A mega church pastor whose ministry I am acquainted with, became devoted to Calvinism, and used that as a springboard into saying that, since he was a member of the Elect, that nothing he did could cause God to be displeased with him. He paid lip-service to the idea of being a sinner but we show what we really believe in our behavior. He fleeced the denomination out of millions upon millions of dollars, and lived an extremely worldly life. It is difficult to see how he got away with all of the double-dealing and constant lying and abuse of everyone with whom he came into contact. He was recently tossed out of the pulpit but he has done a LOT of damage to the denomination which he and others founded.
Please see my post no. 1664 which pretty much answers to the above.